LSC smart sensors, switches and lamps

Dutch thrift store ‘Action’ had a promotion of TuyaSmart compatible IoT devices for quite low prices. The devices were:

  • Smart switches
  • Smart doorsensor
  • Smart movement sensor
  • Smart alarm
  • Smart lamps and led strips
  • Remote control

I found the efficiency (as in lumen per Watt) of the lamps a bit low, with exception of one 800 lumen lamp, and the ceiling lamp was not really my taste so I didnt bother with them. The remote control seemed somehow obscure, as it seemed it could only control one device. The other devices though were quite promising so I bought those.

Though LSC has it’s own app, I already had the TuyaSmart app, so I decided to use that one. The LSC app is a spitting image of the Tuya app, but it is not recognized by e.g. Google Home, whereas Tuya is.

The EU type switches are quite compact, but you may still ha e trouble putting 2 right next to each other in a double outlet. The setup is very easy and if you use the ‘scan’ option in the tuya app, not much can go wrong.

The door sensor and the alarm are also easy to set up. The doorsensor is coincell operated and the two parts can be stuck to the door and door frame. In the Tuya app, actions can be attached to the doorsensor to e.g. switch on a light, or sound an alarm. The sensor sends notifications to your phone as well.

That leaves the motion sensor and somehow that was a different story. Connecting to wifi was simple, but after that, nothing g happened. No amount of movement seemed to be noticed. As another sensor had the same behaviour, I had not much choice but to return them.

Yet…..I kept wondering. Just couldn’t imagine two sensors were not working, especially as no one else seemed to return them while they were selling like hot cakes.

So….I bought another one…..same result. Various reinstalls, even in the LSC app, showed no effect, so I left it, frustrated, deciding to return it after the weekend.

And then….out of the blue, it started to work, and quite well I should add. The sensor does ha e a bit of a refractory period, meaning that after it senses movement and sends a notification, it will not sense new movement for a few minutes. People have reported this to be about 5 min, but in my experience it is more like 3 minutes and occasionally even 1 minute.

TuyaSmart

The app seems to have one slight shortcoming though: When a movement is registered and shown at the bottom, the app only shows  “intruder” for a short time and goes back to its ‘No intruder’ status quickly. But that is only a cosmetic short coming.Commercial software or Flashing?

The Tuya app, working with the software in the devices does what it does and it is quite good software. Although I do not believe that ‘the chinese’ are particularly interested in when I switch my lights on, there are many good reasons to put your own software on an IoT device: Not being dependent on 3rd party servers that might go out of business, availability on LAN rather than only WAN, no deluge of different (possibly shady) apps on your phone.
The devices I had all appeared to have an ESP8266 under the hood and could be opened.

LSC motion sensor